:root{--bg: #f4f7f9;--surface: #ffffff;--border: #e0e7ec;--text: #1c2b36;--text-muted: #5b6b78;--primary: #1f7a8c;--primary-dark: #155e6d;--accent: #2e8b57;--shadow: 0 1px 2px rgba(28, 43, 54, .06), 0 1px 8px rgba(28, 43, 54, .04);--status-in-service-bg: #e3f3ea;--status-in-service-fg: #1f7a4d;--status-maintenance-bg: #fdf1de;--status-maintenance-fg: #9a6a12;--status-decommissioned-bg: #f0f1f3;--status-decommissioned-fg: #5b6b78;--priority-high: #b3261e;--priority-medium: #9a6a12;--priority-low: #5b6b78}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}.app-header{background:var(--primary);color:#fff;padding:14px 24px;box-shadow:var(--shadow);display:flex;align-items:center;gap:12px}.app-header .brand-mark{width:30px;height:30px;border-radius:7px;background:#fff;color:var(--primary);display:grid;place-items:center;font-weight:700;font-size:15px}.app-header h1{font-size:17px;font-weight:600;margin:0;letter-spacing:.2px}.container{max-width:1080px;margin:0 auto;padding:24px}.breadcrumb{background:none;border:none;color:var(--primary);font-size:14px;cursor:pointer;padding:0;margin-bottom:16px}.breadcrumb:hover{text-decoration:underline}.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.kpi-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:18px 20px;box-shadow:var(--shadow)}.kpi-card .kpi-label{font-size:13px;color:var(--text-muted);margin:0 0 6px;text-transform:uppercase;letter-spacing:.4px}.kpi-card .kpi-value{font-size:30px;font-weight:700;margin:0;color:var(--primary-dark)}.panel{background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);margin-bottom:24px;overflow:hidden}.panel-header{padding:14px 20px;border-bottom:1px solid var(--border);font-size:15px;font-weight:600}table{width:100%;border-collapse:collapse;font-size:14px}thead th{text-align:left;padding:11px 20px;color:var(--text-muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.4px;border-bottom:1px solid var(--border);background:#fafcfd}tbody td{padding:12px 20px;border-bottom:1px solid var(--border)}tbody tr:last-child td{border-bottom:none}tbody tr.clickable{cursor:pointer}tbody tr.clickable:hover{background:#f3f8fa}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}.badge.in-service{background:var(--status-in-service-bg);color:var(--status-in-service-fg)}.badge.maintenance-due{background:var(--status-maintenance-bg);color:var(--status-maintenance-fg)}.badge.decommissioned{background:var(--status-decommissioned-bg);color:var(--status-decommissioned-fg)}.battery-cell{display:flex;align-items:center;gap:8px;min-width:120px}.battery-bar{flex:1;height:7px;border-radius:999px;background:#eaeef1;overflow:hidden}.battery-bar>span{display:block;height:100%;border-radius:999px;background:var(--accent)}.battery-bar.low>span{background:#d68a1e}.battery-bar.critical>span{background:var(--priority-high)}.detail-header{display:flex;flex-wrap:wrap;gap:24px;align-items:baseline;margin-bottom:8px}.detail-header h2{margin:0;font-size:22px}.detail-header .serial{color:var(--text-muted);font-size:14px}.meta-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px 24px;padding:18px 20px}.meta-grid .meta-item .meta-label{font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.4px}.meta-grid .meta-item .meta-value{font-size:15px;font-weight:500}.pill{display:inline-block;padding:2px 9px;border-radius:6px;font-size:12px;font-weight:600;background:#eef2f4;color:var(--text-muted)}.pill.priority-high{background:#fbe6e5;color:var(--priority-high)}.pill.priority-medium{background:#fdf1de;color:var(--priority-medium)}.pill.priority-low{background:#eef2f4;color:var(--priority-low)}.state-msg{padding:48px 20px;text-align:center;color:var(--text-muted)}.state-msg.error{color:var(--priority-high)}.empty{padding:24px 20px;color:var(--text-muted);font-size:14px}